div.p,span,ul,li{
    margin: 0;
    padding:0;
}
li{
    list-style:none;
}
.box,.box li{
    box-sizing: border-box;
}
.box{
    width: 240px;
    height: 240px;
    display: block;
}
.box li{
    float: left;
    width: 80px;
    height: 80px;
    border: 1px solid #333333;
    display: flex;
    justify-content:center;
    align-items: center;
    padding:10px;
    font-size:14px;
}
.active{
    background: #b0858c;
    color:#ffffff;
}